How did Sai Baba demonstrate his omniscience, or inner knowledge, to Laxmichand?

Sai Baba demonstrated his omniscience to Laxmichand in several ways, as detailed in Chapter 28. The most notable instance was when Laxmichand silently craved more khaja after having it once. A day later, Baba not only specifically requested khaja as naivedya but also mirrored Laxmichand's precise physical state. As Laxmichand sat feeling restless from hunger and back pain, Baba's words were, "Hunger has come, that's good. There should be medicine for back pain." Later, when Baba had a cough, Laxmichand privately thought it might be the evil eye, and Baba spoke similar words the next morning. These events, where Baba voiced Laxmichand's unspoken thoughts and feelings, served as profound proof of his all-knowing nature.